#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>
#include <string.h>
#include <errno.h>

int main()
{
	char str1[20] = "hello world!";
	char str2[20] = { 0 };
	for (int i = 0; i < 10; i++)
	{
		printf("%s\n", strer(i));
	}
	return 0;
}